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orcein

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orcein
orcein Chem. (ˈɔːsiːɪn) [Altered from orcin.] A red colouring-matter (C7H7NO3) obtained from orcin by the action of ammonia and oxygen, and existing in the dye called orchil.1838 T. Thomson Chem. Org. Bodies 404 To the substance into which orcin is converted by the joint action of oxygen, ammonia, a... Oxford English Dictionary
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Orcein
Orcein, also archil, orchil, lacmus and C.I. Orcein is a reddish-brown dye, orchil is a purple-blue dye. wikipedia.org
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Elaunin
Overview Identification Unlike Oxytalan fibres, elaunin fibres stain with orcein, aldehyde fuchsin and resorcin fuchsin without prior oxidation. wikipedia.org
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orcin
orcin Chem. (ˈɔːsɪn) Also -ine. [mod. f. mod.L. orc-ina, It. orc-ello, orchil: see -in.] A former name for orcinol. Cf. orcein.1840 Penny Cycl. XVI. 480/2 Orcin, a peculiar matter obtained by Robiquet from a species of lichen (variolaria orcina). Ibid., These crystals are orcin, which become, as alr... Oxford English Dictionary
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Orcinol
It is used in the production of the dye orcein and as a reagent in some chemical tests for pentoses, such as Bial's Test. Oxidation of the ammoniacal solution gives orcein, C28H24N2O7, the chief constituent of the natural dye archil. 4-Methylcatechol is an isomer, found as wikipedia.org
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purpureïn
purpureïn Chem. (pɜːˈpjʊəriːɪn) [f. L. purpure-us (see purpureal) + -in; named after orcein.] A product of the action of ammonia on purpurin, which dyes a fine rose-red or amaranth-red. Also called purpuramide.1863 Stenhouse in Proc. Royal Soc. XIII. 145 This compound being in its mode of formation ... Oxford English Dictionary
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Orchilla
Orchilla may refer to: La Orchila, an island "Orchella weeds," a lichen that is a source of a purple-blue dye extracted from orcein Punta Orchilla wikipedia.org
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Feulgen
Feulgen Cytology. (ˈfɔɪlgən) The name of R. J. Feulgen (1884–1955), German biochemist, used attrib. or occas. in the possessive to denote the methods and materials he used, and the reaction involved, in preferentially staining cell organelles containing DNA, esp. chromosomes; so Feulgen reaction, Fe... Oxford English Dictionary
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Archil
King Archil of Imereti 18th century Prince Archil of Imereti Influential People Archil Dzuliashvili, Current Ambassador of Georgia in India Other Orcein wikipedia.org
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Litmus
All of the chemical components of litmus are likely to be the same as those of the related mixture known as orcein, but in different proportions. In contrast with orcein, the principal constituent of litmus has an average molecular mass of 3300. wikipedia.org
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غضروف مرن
تَحديد الغضروف المَرن تَحت المجهر عن طَريق تحديد الألياف المَرنة المَوجودة به بشكل أساسي، حيث يتم تحديدها بواسطة صَبغات خاصة، وهيَّ : صَبغة أورسَيِين (Orcein wikipedia.org
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Batkoa
Unfixed nuclei have granular contents stained by aceto-orcein. wikipedia.org
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PDF 唾腺染色体の観察 - Fc2
コツ。唾腺は頭の近くにあるので、押さえている側で切れた時は、頭部の側からしごくと出てくる。 3．唾腺は消化管や脂肪体と一緒に出てくる。脂肪体は不透明で白っぽく、唾腺は半透明でハート形 またはY字形をしており、1対ある。
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内质网
由于光面内质网的大量增生，这种肝细胞在光学显微镜下呈毛玻璃外观，故有毛玻璃细胞之称，并可为地衣红（orcein）著染。在细胞损伤时光面内质网也可出现小管裂解为小泡或扩大为大泡状。 wikipedia.org
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Toluidine blue
It is especially useful today for staining chromosomes in plant or animal tissues, as a replacement for Aceto-orcein stain. wikipedia.org
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